Registration Dossier
Registration Dossier
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EC number: 202-761-6 | CAS number: 99-51-4
Phototransformation in air
Administrative data
- Endpoint:
- phototransformation in air
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- other: Prediction model
- Title:
- Phototransformation in air by Environmental Science Center’s PBT profiler
- Author:
- Environmental Science Center
- Year:
- 2 010
- Bibliographic source:
- PBT profiler, Office of Chemical Safety and Pollution Prevention , U.S. Environmental Protection Agency; version 1.301
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Modelling datatbase
- Principles of method if other than guideline:
- PBT Profiler Estimation database
- GLP compliance:
- no
Test material
- Reference substance name:
- 4-nitro-o-xylene
- EC Number:
- 202-761-6
- EC Name:
- 4-nitro-o-xylene
- Cas Number:
- 99-51-4
- Molecular formula:
- C8H9NO2
- IUPAC Name:
- 4-nitro-o-xylene
- Details on test material:
- Substance Name : 4-nitro-o-xylene
Molecular Formula : C8H9NO2
Physical state : Liquid
Constituent 1
Study design
- Light source:
- not specified
Duration of test at given test condition
- Duration:
- 60 d
- Temp.:
- 25 °C
Results and discussion
% Degradation
- % Degr.:
- 50
- Sampling time:
- 15 d
Degradation rate constant
- Reaction with:
- OH radicals
- Rate constant:
- 0 cm³ molecule-1 s-1
- Transformation products:
- not specified
Applicant's summary and conclusion
- Conclusions:
- The substance 4-nitro-o-xylene is persistent in air medium as the half life period of 4-nitro-o-xylene in air is 15 days.
- Executive summary:
The atmospheric oxidation half-life of 4-nitro-o-xylene was estimated using the level III multimedia model. It was estimated that the substance is persistent in air medium as the half life period of 4-nitro-o-xylene in air is 15 days. This indicates that 4-nitro-o-xylene is not easily phototransformed in air.
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